Canon iPF6100 Service Manual page 275

3) Remove the three screws[1], and then remove the shield cover[2] and the guide[3].
4) Disconnect the four connectors[2] from the power supply PCB[1] and Hard disk drive.
5) Remove the five screws[3], and then remove the power supply PCB[1] together with the mounting plate.
e) Procedure for replacing the maintenance cartridge relay PCB(ROM board)
1) Turn off the printer and unplug the power cord.
2) Replace the maintenance cartridge relay PCB.
3) Plug the power cord to the outlet, and then turn on the printer whth the PAPER SOURCE button and INFORMATION button pressed down. (The printer will
start up in the PCB Replacement mode.)
4) Check that "Initializing" appears on the display, and then release the buttons. (When the printer enters the PCB Replacement mode, the message lamp goes on.)
5) What until "REPLACE MODE" appears on the display.
6) Select "MC BOARD", and then press the ok button.
7) Check that "TURN POWER OFF" appears on the display, and then turn off the printer.
8) Turn on the printer.
9) Check the firmware version. If the firmware is not the latest version, update.
f) Procedure for replacing the main controller PCB
1) Turn off the printer and unplug the power cord.
2) Replace the main controller PCB.
3) Plug the power cord to the outlet, and then turn on the printer whth the PAPER SOURCE button and INFORMATION button pressed down. (The printer will
start up in the PCB Replacement mode.)
4) Check that "Initializing" appears on the display, and then release the buttons. (When the printer enters the PCB Replacement mode, the message lamp goes on.)
5) What until "REPLACE MODE" appears on the display.
6) Select "MC BOARD", and then press the ok button.
7) Check that "TURN POWER OFF" appears on the display, and then turn off the printer.
8) Turn on the printer.
9) Check the firmware version. If the firmware is not the latest version, update.
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Chapter 4
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